Vaporizer



June 16, 1931. l. E. AsKE ET AL 1,810,383

v vAPoRIzER Filed Dec. 4, 1929 ATTORNEY Patented June 16,` 1931 UN {T} STAT'.

PATENT Fries IRVING E. ASNE, WILLIAM r. AsKE, AND LEONARD' E. ASNE,` oFMINNEAroLrs,

Y MINNESOTA VAPORIZER Application filed December 4, 1929.` Serial No. 411,484.

Our invention relates to vaporizers, and

hasffor its object the yprovision of a 'coni-.-

bined hydrocarbon and air heating vapori'zer for automobiles and vfor such other purposes as it may be adapted to serve. has for a further object the provisionkof ineansyfor introducing yair into the heater chamber ofy a hydrocarbon vaporizer to -reduce or Iprevent thel formation of a vacuum 10 therein. 'lt has fora further object the provision of a novel valve and heater case forming part of said invention. `W1th these and other objectsin'view, 1t consists of the structures, combinations and arrangements of parts hereinafterv described and claimed. In the drawings, Fig. lisa central vertical longitudinal section partly in front elevation, of our said invention, the hereinafter` described fuel or hydrocarbon supply valve being in section and the hereinafter described ,air intake valve and the hereinafter described heating or vaporizing element beingin elevation. Fig. 2 is an eX- teriorside elevation of said invention. Fig. 3 is an exterior front elevation of said invention and F igis a t-op view'o-f said invention. n n 1 The hereinafter vdescribed fuel supply valve and thehereinafter described air supply valve Yare preferably similar to each other Vin:construction; it is therefore believed that it will be necessary' to describe only one of said valves in detail.

In.thedrawings,'l"is a casing containing `three chambers, as la, lb and le, into the central one, 1b, of which chambers extends an electric heating device, as 2, of any suitable structure. In said chamber la is positioned an electromagnetic valve, coinprising a valve seat 3, which is apertured in any suitable manner to permit the outward'flow of hydrocarbon fuel therethrough., Said seat preferably embodies an apertured bushing 3a positioned in the valve aperture of said seat. f Said seat is also .provided with downwardly directe-d spacing andr guide f pins 3b adapted to extend loosely through suitable apertures in a collar fla which encircles a valve stein l, and to extend `into recesses formed 1n the upper end of an electric coil spool 5, by which pins said seat and spool are spaced from each other, and within which space said collar inay rise and fall. I

Said valve stem preferably has formed thereon a shoulder el against which said collar, if loose on said valve stein, is adapted to bear. If desired, however, said collar may be tight on said valve stem, in

which case said shoulder may be omitted. L

Uponrsaidy spool is coiled an insulated eleci tric wire 5.` Said spool is Venlarged, at its upper end, and is counter-boredat its upper end to receive one end of a spring @which is adapted to bear at its opposite end against said collar toforce said valve .f into closing position against said seat.

' The lower end of said valve'stern extends into the bore of said spool and is adapted to form the armature of laV solenoid `or equivalent electro magnet, comprising said,V coil, spool, core, and a stop 8aA extending into the opposite end ofsaid spool from the lower end of a coil sheath 8, which' sheath is pressed over said coil and is adapted to forni a ground for any outer turn of theA coil froni which the insulation may have been abraided in coursey of assembly or otherwise.

Said coil is preferably wound froin'one end to the other of said spool and back again, both ends ofthe wire terminating at or near the same end of. the.rk spool. One

' cally rconnected to a spring Contact piece 9 which is .adapted to bear against the head of an electric wire binding post 10, adapted to be connected by any suitable means, as by a wire 11, with any suitable source of electricity, asa battery l2. In the circuit of said battery and electro magnet any suitable switch may be interposed, as the switch 1 3, which may if desired be vlocated onthe in- .end of said wire is preferably grounded .in i

strument board of an automobile and may be arbitrarily operated by hand.

An outwardl extending boss 16 is formed on the side of said valve casing which is preferably recessed to receive the delivery end of a pipe (not shown) leading from any suitable source of supply of fuel oil under any suitable means of feeding pressure, as gravity. The wall of said casing has formed therein an intake port 1.6Ll leading from the recess in said boss, and ada ted to receive a metering screw 1tb Whic is adapted to govern the amount or rapidity of flow of oil into said casing when said valve L is opened.

In like manner a metering screw may be provided for the intake port of the air valve chamber.

It will be observed that said valve seat extends entirely across-the chamber in said valve casing so as to cut olf any flow of oil between its sides and the wall of said casing, but that there is a slight space between said coil sheath and the side wall of said casing through which oil may flow upward from the intake port in the casing and thence into the space between the head of said spool and said collar, and thence through the pin holes in said collar-or additional holes therethrough if desiredand thence around the valve stem in the recess of the valve seat to the discharge port of said valve.

The upper end of said valve casing extends above said valve seat and forms an oil passage 17 communicating with a connecting port 18 extending from said passage 17 through to said chamber 1b, whence it may flow downward in a space 19 between said heater 2 and its chamber wall and enter the heating element of the vaporizer through an aperture 21 in its side wall. Said heating element may be of any suitable structure.

The operation of the air valve which extends into said chamber 1, and the flow of air through it is similar to the operation of the fuel oil valve and the flow of fuel oil through it and we have therefore designated the parts by similar numerals.

In operation, when the switch 13 is closed, the coils of the electro-magnetic valves are energized, thus magnetizing the cores, which attract their valve stem armatures and thus open said fuel-oil and air valves. At the same time, the electric heating element of the vaporizer is energized and electrically f heated by means of a parallel circuit including said battery switch and a strap conductor 22. Said heating element is adapted to discharge through its upper end and through a chamber discharge port 23 into the air horn or other sector of the intake manifold of a hydrocarbon internal explosion engine and to supply dense fumes for starting such engine, as is well known to the art, and is not believed necessary to be further described here.

The upper end of-said valve chambers may be closed in any suitable manner or by any suitable means, as by plugs 24, pressed into position.

In operation, one effect of the admission of air through the air valve is to cause a larger volume of vaporized fuel to How from the heating chamber into the cylinders during the suction strokes of the pistons. Vithout the air iniiow the vaporized charge could not enter the cylinders except by expansion or vapor pressure.

In a vaporizer, the combination of a heater chamber containing an electric heater; a fuel oil valve chamber provided with an intake port adapted to communicate with a source of hydrocarbon fuel supply, said valve and heater chambers having a portl in common through which said valve chamber may discharge hydrocarbon fuel into said heater chamber; an electro-magnetic valve positioned between the intake and discharge ports of said fuel oil chamber and adapted to govern the ow'of hydrocarbon fuel to said heater chamber; an air valve chamber provided with an intake port communicating with the atmosphere, said air valve chamber and said heater chamber having a port in common through which said air valve chamber may discharge air into said heater chamber; an electro-magnetic valve positioned between the intake and discharge ports of said 'air valve chamber and adapted to govern the iow of air to said heater chamber, said heater chamber having a discharge port formed therein adapted to discharge heated and vaporized hydrocarbon fuel and fumes from said heater chamber, and electric means for energizing said valves and for independently energizing said heater and adapted to open said valves when said heater is in operation.

In testimony whereof, ywe hereunto affix our signatures.

IRVING E. ASKE. WILLIAM F. ASKE. LEONARD E. ASKE. 

